INFO: task udevd:14295 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:22536 pid:14295 tgid:14295 ppid:5258   task_flags:0x400140 flags:0x00080003
Call Trace:
 <TASK>
 __schedule+0x17e4/0x4de0
 schedule+0x164/0x360
 io_schedule+0x7f/0xd0
 folio_wait_bit_common+0x6d8/0xbc0
 do_read_cache_folio+0x1aa/0x590
 read_part_sector+0xb6/0x2b0
 adfspart_check_POWERTEC+0x92/0xef0
 bdev_disk_changed+0x765/0x14c0
 blkdev_get_whole+0x380/0x510
 bdev_open+0x31e/0xd30
 blkdev_open+0x470/0x610
 do_dentry_open+0x953/0x13f0
 vfs_open+0x3b/0x340
 path_openat+0x2f3b/0x3890
 do_filp_open+0x22d/0x490
 do_sys_openat2+0x12f/0x1d0
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0xf0/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa6d75169a4
RSP: 002b:00007ffd8b0956e0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00005600d44428a0 RCX: 00007fa6d75169a4
RDX: 00000000000a0800 RSI: 00005600d441ec20 RDI: 00000000ffffff9c
RBP: 00005600d441ec20 R08: 0000000000000001 R09: 3fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 00005600d442a370 R14: 0000000000000001 R15: 00005600d440c910
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e33eba0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5636:
 #0: ffff8881140060a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000356e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45f/0x14a0
1 lock held by udevd/14295:
 #0: ffff8881096ea358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
1 lock held by udevd/19742:
 #0: ffff8881097d1358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30

=============================================

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 34 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x1a9/0x280
 nmi_cpu_backtrace+0x3a9/0x3e0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 watchdog+0xf5b/0xfa0
 kthread+0x726/0x8b0
 ret_from_fork+0x4d3/0x870
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5754 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:lockdep_softirqs_off+0x38/0x120
Code: 14 11 48 89 44 24 08 83 3d 04 5d 1e 0e 00 74 7f 65 8b 05 db d8 14 11 85 c0 75 74 65 48 8b 05 67 98 14 11 83 b8 2c 0b 00 00 00 <75> 63 83 3d af eb 1f 18 00 75 15 48 c7 04 24 00 00 00 00 9c 8f 04
RSP: 0018:ffffc90003b07808 EFLAGS: 00000046
RAX: ffff88810bcc1d00 RBX: 0000000000000201 RCX: 1b3875c4cf8a9a00
RDX: ffff88810bcc1d00 RSI: 0000000000000201 RDI: ffffffff894e06ca
RBP: ffffc90003b078c0 R08: 0000000000000000 R09: ffffffff89e9cf2d
R10: ffffc90003b079a0 R11: fffff52000760f3a R12: 1ffff92000760f04
R13: 0000000000000040 R14: 0000000000000246 R15: dffffc0000000000
FS:  000055558eacc500(0000) GS:ffff8882a9adc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000011038 CR3: 000000010e32c000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 __local_bh_disable_ip+0xb9/0x1a0
 _raw_spin_lock_bh+0x1c/0x50
 lock_sock_nested+0x6a/0x100
 tcp_recvmsg+0x20d/0x860
 inet_recvmsg+0x157/0x270
 sock_recvmsg+0x1a8/0x270
 sock_read_iter+0x251/0x320
 vfs_read+0x582/0xa70
 ksys_read+0x150/0x270
 do_syscall_64+0xf0/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcbfc557997
Code: 48 89 fa 4c 89 df e8 a8 56 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffd48e587d0 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 000055558eacc500 RCX: 00007fcbfc557997
RDX: 0000000000000004 RSI: 00007ffd48e5882c RDI: 0000000000000003
RBP: 00007ffd48e58cd0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
R13: 00007ffd48e5882c R14: 00007ffd48e588c0 R15: 0000000000000000
 </TASK>
